Kelpie

Kelpie is an arrogant fairy who aggressively pursues Lydia despite her lack of interest. His fairy form is a black horse, while his human form is an attractive dark-haired young man with hypnotic eyes. Powerful in magic, he can purify water and cleanse toxins. For all his pushiness, he genuinely cares for Lydia, repeatedly tries to protect her, and recovers quickly when immersed in water.